fa9c85f956773b5c1430b2cab5986a5e7465664efe49161d1fa530b9daafc124

Analysis

max time kernel
94s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 16:59

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General

Target
IETab.dll
Size 178KB
Sample240825-vhdb5avalb
SHA256 f83bca6cd4897e8fcd3efd7f27abcb0152ef4c1887c5b6474d7842fa3eebf31f
MD5 d767390d6e47b2762accaf9f4b44a2fa
SHA1 56c770abedfd52dee418e8b842b50e99b40c48d1
SHA512 6e0f534fcb5c6017701583b212f9aaf460078eaaf381b7005011613022752e032c5e64aa212803f82d9a4e8555ad5c61eed5f5685981d82d3d587969fccddf3c
SSDEEP 3072:DSYWkSyr1ky7nrL1MXd/SQYSEXeHlxSACkuOtnPz7ezI8fwFB9w:lp1m6QYSEKl4DVCPWaB6
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B60FE1D2-2F84-42a7-AE04-03284738CC24}	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IETab.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\ = "IETab 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\ = "InSideBand Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CLSID\ = "{B60FE1D2-2F84-42a7-AE04-03284738CC24}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\VersionIndependentProgID\ = "IETab.InSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\ = "IETab"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\ProgID\ = "IETab.InSideBand.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IETab.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ = "IInSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CurVer\ = "IETab.InSideBand.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\ = "InSideBand Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand.1\CLSID\ = "{B60FE1D2-2F84-42a7-AE04-03284738CC24}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC40EBFB-929E-400E-AA4B-5BC683900A8E}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ = "IInSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IETab.InSideBand\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B60FE1D2-2F84-42a7-AE04-03284738CC24}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\ = "{DC40EBFB-929E-400E-AA4B-5BC683900A8E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17625A54-760C-4C42-B04E-E59339BC2DA1}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 5028	2776	regsvr32.exe	84
PID 2776 wrote to memory of 5028	2776	regsvr32.exe	84
PID 2776 wrote to memory of 5028	2776	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\IETab.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\IETab.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:5028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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